Color Effects

I made a costume renderer so you can mess with pixel colors.

I made some sort of negative effect, it just turns everything into shades of pink/red but I think you'll know where I was coming from when you look at how the colors are gotten.
(they're being flipped on a list of numbers from 255 to 0)
Negative Effect

What do you think of this alternate way that I made?

Actual negative, that's pretty cool!

Thanks! Your project is a cool effect, too.